Combined DWT image watermarking and AES technique for digital 2-D image

摘要

In different sectors of government offices, the original documents are scanned and transfer from one section of office to other through internet technology. Nowadays, internet technology is widely used by every person. There may be many intruders or attacker to hack or manipulate the data like digital images passing through digital channel. To overcome this problem, there is need of authenticity, copyright protection and security to be provided to digital image. This facility can be provided by using combination of discrete wavelet transform image watermarking and advanced encryption standard for digital 2-D image.